>>Wasn't it Aziz that had access to Berg's cell phone (vs. Infante)?
Yes, I will stand corrected. I can't find my original reference, but it probably was Aziz. So that means April 9th is the LAST DAY Hugo Infante was seen by acquaintances in Iraq, the same as Nick Berg.
Aziz is now getting publicity for monitoring the final cell-phone calls of his slain partner. He said ... he understands Berg's phone was used as recently as April 19, and that three calls were made that day to Jordan, to the United Arab Emirates and to a local [Baghdad] number.
http://www.politrix.org/modules.php?name=News&file=article&sid=953